Shifting was clunky so drained the Amsoil 20w50 and added Amsoil primary fluid. Took two full qts to get it to as shown in manual! Tried shifting, first gear clunky first time then all good, even back to first. No issue finding N. But 64oz? WTF!? I’ve been changing primary fluids for years. Don’t ever recall two freakin qts!!

 

Forget about how many ounces to use.

With the bike standing straight up, set the lube level so that it just touches the outside diameter of the outer clutch shell.

This level is the same for all Big Twin primaries since mid 1985.

 

It is a little of PIA to hold it up and check. Myself, I just put what the manual says, and forget about it.

He should specify year and bike. I can't imagine a harley taking 64 ounces, but I don't know all the models. I also caution, that I have 3 twin cams, and they all hold different amounts. Look in the manual, not the guy who says I been .....

 

that’s what I did. Two freakin qts!

Two of these! 2023 breakout.

 

So here’s where I’m going… the qts weren’t full when they arrived today and I missed that… WTF else could it be!? I agree, no way 64 oz went in there without spilling out all over the floor!

 

Last I checked, (when done on jiffy stand) the primary won’t even hold a full quart without spilling over/out the derby cover hole. I can’t imagine getting double that in…. Did you some how fill while the bike was on a jack or lift with the rear end higher than the front?

 

Brand new sealed bottles?? 1/2 full with oil but full price per quart on the bill?? I'd be making a phone call this morning.

If you really want to know for sure, drain the fluid in the primary, measure it, and refill it back up to the line in Dan's diagram. Then you'll know for sure. The fluid is still plenty fresh/new enough to reuse, as well as the derby cover gasket. At least, that's what I'd do to answer these burning questions...........

 

That 64 oz's will be livin' in your head "rent free" until you do drain and check

 

Yours is different than mine. But as I said I have 3 TCs and they are all different.

 

More of the same Me, Me, Me, Me, I, I, I, I

You only post here to disrupt the conversation and to talk about yourself and your imaginary motorcycles.

It doesn`t matter what year the bike is when it comes to the primary lube level, all the same on wet primaries (mid `85 and later).

You must not have seen that when you tried to look up the answer in google so you could come here and make another babbling post.

The manual is often incorrect when it comes to the amount of lube needed (my `89 service manual says fill up to the derby cover opening with bike straight up), that must not be in google either.